Calculating machine



Feb. 29, 1944. R. ANSCHUTZ ETAL CALCULATING MACHINE Filed July 15, 1938 ll Sheets-Sheet l Feb. 29, 1944. R. ANscHUTZ ET AL CALCULATING MACHINE Filed July 15, 1938 ll Sheets-Sheet 2 c6213 1771 67? ar- Feb. 29, 1944.

R. ANSCHUTZ iz-rAL 2,342,782

CALCULATING MACHINE Filed July 13, 1938 ll Sheets-Sheet 3 Feb. 29, 1944. R. ANSCHUTZ ETAL CALCULATING MACHINE 11 Sheets-Sheet 4 Filed July 15, 1938 Feb. 29, 1944. R. ANscHU'i'Z ET AL CALCULATING MACHINE Filed July 13, 1958 ll Sheets-Sheet 5 f2- yma/vm 9 yaw-M8;

In manta/ s.

)Feb. 29,1944.

R. ANSCHUTZ ETAL CALCULATING MACHINE Filed July 13, 1938 7 ll Sheets-Sheet 6 1944- R. ANSCHUTZ ETAL CALCULATING MACHINE Filed July 15; 1938 ll Sheets-Sheet 7 Feb. 29, 1944. R. ANSCHUTZ ET AL CALCULATING MACHINE Filed July 1a, 1938 11 sheets-sheet s Feb. 29, 1944. R. ANscHUTz ETAL CALCULATING MACHINE Filed July 15, 1938 ll Sheets-Sheet 9 Feb. 29, 1944. R. ANSCHUTZ ET AL 2,342,782

CALCULATING MACHINE Filed July 13, 1938 ll Sheets-Sheet l0 Feb. 29, 1944. R. ANSCHUTZ ET AL 2,342,782

CALCULATING MACHINE Filed July 15, 1938 ll Sheets-Sheet 11 Patented F eb. 29, 1944 2,342,782 CALCULATING MACHINE Robert Anschiitz, Zella-Mehlis, Thuringia, and

Richard Griischel, Suhl,

vested in the Thuringia, Germany;

Alien Property Custodian Application July 18, 1938, Serial No.

in Germany duly 15, 1937 13 Claims.

This invention relates to a calculating machine with a transfer device between at least one of the totalizers on the carriage of the machine and a storage device.

Th invention is an improvement of the machine disclosed in Patent No. 2,173,635 to A. Pott.

In that machine, the storage key must he operated twice for adding a value which is in a totalizer, to a value which is already in the storage device. When the storage hey is operated for the first time, the value in the storage device is added to the value in the totalizer and the tens transferif any-is efiected by the tens transfer mechanism of the totalizer. comes to rest at the end of its cycle and the storage key is operated for the second time. Upon this operation, the total obtained by the addition of the value in the totalizer and the value in the storage device, is transferred to the storage device.

It is the drawback of that machine that the storage key must be operated twice, for if the operator inadvertently does not operate it the second time, a miscalculation will result.

This drawback is eliminated according to the present invention, as follows:

Upon operation of a key which causes the operation of a transmission driving the totalizers from the storage device, a transmission driving the storage device from the totalizers is placed in readiness for action and, under the control of the first-mentioned transmission, drives the storage device from the totalizers.

In the accompanying drawings the invention is illustrated by way of example as adapted to a calculating machine of the type known as the v Mercedes-Euklid.

In the drawings Fig. 1 is a perspective illustration of the Inachine.

Fig. 2 is a central vertical cross section, viewed inthe direction of the arrow a in Fig. 1 and showing part of the actuating means of the machine, one order of its totalizer, and the storage device in its inactive position with respect to the totallzer.

Fig. 3 shows part of Fig. 2, with the storage device in its active position with respect to the totalizer.

Fig. 4 is a perspective illustration of the storage device and the transmission mechanism for rotating its gears, viewed from the front and the left.

Fig. 5 is a perspective illustration showing one The machine of the storage gears, the pin it rotates about, and the means for holding it against axial displacement.

Fig. 6 is a perspective illustration of the gear, viewed in the direction of the arrow 0 in Fig. 5.

7 is a perspective illustration of the parts along the section line ll-i in Fig. 1.

Figs. 8 and 9 are elevations showing certain parts illustrated in Fig. 7 in their inactive and active positions, respectively.

Fig. 10 is a perspective illustration of the parts along the section line ldl0 in Fig. 1.

Fig-10a is a perspective illustration showing certain parts illustrated in Fig. 10 remote from each other for the sake of clearness.

Figs. 11 and 12 are illustrations of the parts shown in Fig. 10, in elevation and in the inactive and active positions of the parts, respectively.

Fig. 12a shows certain parts illustrated in Figs. 11 and 12, in intermediate positions.

Fig. 13 he perspective illustration of certain parts arranged at the left hand side of the machine, and viewed from the left in Fig. 1.

Figs. 14. and 15 are elevations of the parts illustrated in Fig. 13, in their inactive and active positions, respectively.

Fig. 16 is an elevation showing the storage key and clearing key for the storage device in their initial positions, as viewed in the direction of the arrow a in Fig. 1.

Fig. 17 is a view similar to Fig. 16 showing the storage key and the clearing key for the storage device in their depressed positions.

1. General description of the machine The machine, as mentioned. is of the Mercedes-Euklid" type. The mechanism of the machine is enclosed in a casing I whose elevated rear portion contains a carriage 2 on which a totalizer having sixteen orders is arranged. The numeral wheels of the totalizers are read through holes S in the front wall of the elevated casing portion, and the indications of the revolutions counter. also on the carriage, are read through holes S1. A motor 1a, at the rear of the machine, operates its main driving shaft through a worm gear, not shown.

The machine is equipped with a key board having sixteen rows of keys 6, for entering values into the totalizer through an actuating means. Special keys are arranged at the right and at the left of this key board. The keys at the right are: An addition key 8 a subtraction key 9 key II (III), a totalizer a key board clearing clearing key i2 (11), a clearing key I3 (I) for the revolution counters, a threefold multiplication key I4 designated (M), a storage key I6 (S), and a clearing key I1 (SL) for the storage device. A controlling handle Illa for the addition and subtraction keys 8 and 9 projects. from a slot in the top plate of the casing I. When this handle is at M, as shown, the shaft I45 of the (Pigs. 'Ito 12) actuating mechanism rotates as long as one of the keys 8 or 9 is held in depressed position. When the handle is at A, the shaft performs one revolution only upon depression of one of the keys. Another handle I controls the clearing of the revolution counters during three-fold multiplication. Arranged at the left of the keyboard are a multiplication key I8 (X), a division key I9 and a correction key 23 (COR). A handle 2I is arranged for changing over from positive to negative multiplication or division, and vice versa, and a handle 22 is arranged for interrupting the multiplication.

An inscription strip 23 is arranged in front of the key board. At its left hand end, the strip bears the inscription Dividend and at its right hand end Multiplicand and intermediate these inspections the strip bears the inscriptions Multiplier and Divisor. These inscriptions indicate that in multiplication the eight right-hand rows of the keys 5 are for use in setting up the multiplicand and the eight left-hand rows are for use in setting up the multiplifier, and in division the nine righ -hand rows of the keys 6 are for use in setting up the divisor and the seven lefthand rows are for use in setting up the dividend.

Referring now to Fig. 2, the carriage 2 comprising a pair of plates 85 is mounted to slide on a pair of parallel bars 84 in the elevated rear portion of the casing I, supports the shafts 14 of the totalizer with numeral wheels 3, the seven right-hand totalizenwheel shafts also supporting the revolution counters 4. A plate 59 is secured to the frame of the machine and arranged behind the rear plate 85 of the carriage and supports a storage device 1! whose gears 15 can be moved into mesh with spur gears 18 at the upper ends of the totalizer shafts I4.

2. The mechanism for controlling the connection of the storage device and the totalizers Referring now to Figs. 13, 14, and 15, the lever 24 of the storage key I6 (S) at the right of the machine is mounted to swing about a fixed bar secured in the frame of the machine. A spring 21 connected to that part of the key lever 24 which is at the front of its fulcrum 25 turns the lever clockwise and holds a projection 25 on the lever against a fixed abutment-not shownwhich determines the normal position of the key I6. The front end of the key lever 24 has a projection 24a arranged to engage an abutmentnot shown-and is slotted at 28 to engage a headed screw 3| at the free end of an arm 30 on the righthand end of a shaft 29 mounted to turn in the frame ofthe machine. Another arm 32 is fixed to the opposite end of the shaft 29 and pivotally connected to the front end of a rod 33 at 33a. The rear end of the rod is notched at 35 and is held against a hook 36 at the lower end of a T lever 31 by a spring 34 pulling the rod in the direction of the arrow 17 and upwards at the same time. The T lever 31 is fulcrumed on a bracket 38:: (Fig. 13) at 38. The upper end 39 of the T-shaped lever engages below an abutment-not shown-on the bracket 38a in its ini- 14. A pin 40 tial position, Fig. on the upper end of the lever engages in a curved slot M in the lower end of a link 43 mounted to swing about, a headed screw 42 in the frame of the machine. A bellcrank 45, 49 is mounted on the same headed screw and a spring 44 attached to the upper arm of the bellcrank at n and to the upper end of the link 43 at 43a pulls the armagainst a projection 46 on the upper end of link 43.

A pin 48 at the free end of the upper arm 45 engages in a slot 83. in the free end of a crank 82 which is secu ed to the end BI of a shaft 10b which forms part of the storage device and is mounted to rotate in bearings 10 On the plate The lower arm 49 of the bellcrank is offset, and its free end is provided with a curved recess 50 for cooperation with a cam sector 52 keyed on the tens transfer shaft 5I. The drive of the tens transfer shaft is illustrated in Fig. 13 at the right. The main driving shaft I45 which, as mentioned, is driven from the motor 1a through a worm gear-not shown-is equipped with a spur gear I46. A spur gear I41 on a driving shaft 2 I5 meshes with the spur gear I46, their direction of rotation being indicated by the arrows. A bevel gear I48 on the spur gear I41 meshes with a bevel gear I49 on the tens transfer shaft 5I which is rotated counter-clockwise.

A pin wheel 53, with a sector-shaped end plate at the left, and a fully circular end plate at the right. is mounted to turn freely on the tens transfer shaft 5I but held against axial displacement. The pin wheel 53 controls the rotatable coupling mechanism D between the key-controlled actuating mechanism and the totalizer wheels 3. Fig. 2. A sleeve 51 is splined on the tens transfer shaft 5I at the right of the pin wheel 53 and supports a cam plate 55 at the left, and a flange 58 at the right. In the position illustrated in Fig. 13, the cam plate 55 lies adjacent the pin wheel 53, and a coupling pin 56 on the cam plate 55 projects into a hole 54 in the full end plate of the pin wheel 53. The pin wheel now rotates with the tens transfer shaft.

The sleeve 51 is shifted by a coupling lever 6| mounted to swing about a pin 60 in the machine frame. The position of this pin with respect to the carriage 2 is shown in Fig. 2. A fork 59 at the right-hand end of the coupling lever 6| engages the flange 58 on the sleeve 51 and a spring 34 attached to the coupling lever BI at 55, turns the lever anti-clockwise so that it pushes the sleeve against the pin wheel 53. A tooth 62 on the coupling lever is arranged to engage in a notch 63 of the full pin wheel disk 53 to hold the disk against rotation with the tens transfer shaft. Normally, the tooth 62 clears the disk and notch in the coupling position illustrated in Fig. 13. The coupling lever BI has an extension 66 which, under the pull of the spring 64, slides along the inclined edge of a member 61 fixed to the machine frame, until it is arrested by the edge 68 of the This is the initial position of the coupling lever.

When the storage key I6 is depressed to transfer a value from the totalizer, its key lever 24 is swung anticlockwise until its projection 24a is arrested by the aforesaid abutment-not shown -the shaft 29 and its arms 30 and 32 are turned clockwise, and the rod 33 is drawn in the opposite direction of arrow b. Through the notch 35 in the rod and the hook 36 on the T lever 31, the latter is swung anticlockwise and its pin 40 acts on the edge 4 Id of the slot 4| in the link 43, tuming the link anti-clockwise. The spring 44 turns the upper arm of the bellcrank 45, 49 which, as described, is mounted to swing on the headed screw 42 with the link 43, anti-clockwise. In turn, the bell crank 45, 49, through the pin 48 at the upper end of the arm 45, and the slot 83 in the crank 82, moves the storage device from its inactive position, Fig. 2, into its active position, Fig. 3. v

The swinging of the upper arm 45 of the bellcrank in anti-clockwise direction moves the lower arm 40 with its recess 50 into the path of the sector 52. The T lever 31 when turned anticlockwise raises the extension 66 of the coupling lever 6| by its edge 58 and turns the coupling lever clockwise. This causes the tooth 62 to engage in the notch 63 in the full end plate of the pin wheel 53 so that the pin wheel is now held against rotation, while at the same time the fork 59 shifts the sleeve 51 on the shaft M in the direction of the arrow at in Fig. 13. This moves the coupling pin 55 out of the hole in the full end plate of the pin wheel '53 so that the tens transfer shaft rotates without being interfered with by the arrested pin disk 53. When the tens transfer shaft has turned through about two thirds of a complete revolution, its sector 52 strikes the recessed lower arm 39 of the hellcrank and turns the beilcranlr clockwise against spring 5%. The crank 82 turns anti-clockwise and moves the storage device ll into its inactive position, Fig. 2. This condition continues while the sector 52 slides over the recessed portion 50 of the lower hellcrank arm #39. When the sector has moved off the recess, the spring i l returns the parts into their set positions, Fig. 15, and the storage device ii is automatically returned into active position again. When the storage key i5 is released, the members connected to it return into their initial positions, as shown in Fig. 14.

3. The storage device Referring now to Fig. 4, the plate 69 is secured to the frame of the machine at the rear by screws inserted in holes 69a in opposite ends of the plate. The bearing for the shaft end 0| at the left has already been referred to, and a similar bearing is provided for the shaft end at the other end of the storage device 1|. The two bearings 10 are made with plates for securing them to the plate 59 by screws 10a. The shaft 10b comprising a part of the storage device is solid only at both ends where it is joumaled and otherwise consists of two parallel bars 12 and 13, with a milled slot between them. {The outer faces of the bars are flattened, as best seen inFig. 5. Sixteen storage gears 15 are mounted to rotate on the shanks of headed screws 150 between the bars 12 and 13. A zero stop 18, Fig. 6, projects from the rear face of each gear 15 and a check 10 is provided on the inner side of the rear bar 12 for cooperation with the zero stop. One tooth of each gear 15 is cut away for half its depth to form a zero gap 80, Fig. 6. The zero stop 10 and the check 19 define the zero position of the storage gears, the stop abutting against the check from above as the corresponding gear 15 rotates in the direction of the arrow in Fig. 4 The stop and the check also prevent overthrowing of the gears 15.

The upper portion of the plate 69 is rearwardly bent at 5, Fig. 2, and equipped with a pair of prongs 11 for each storage gear 15 which engage a tooth of each gear, when the storage device is in its ineffective position, Fig. 2, holding the gears against turning.

As described under sub-heading 2," The mechanism for controlling the connection of the storage device and the totalizer, depression of the storage key It causes the storage device to move into its active position in which the gears 15 mesh with the totalizer spur gears 16, and, after a value has been entered in the storage device, the storage device returns into its inactive position in which its gears are blocked by the prongs 11.

4. The clearing device of the storage device This device which has been illustrated in Fig. 4, is referred to as the "clearing device because it serves for clearing a value which has been entered in the storage device. But it also serves for adding a value which is entered in the storage device to a value which has already been entered in the accumulator.

Two L-shaped brackets 35 are secured to the plate 59 by screws 36a near its lower edge and a clearing rack 87 is mounted to slide in the brackets. "in its initial position, the rack 81 bears against a check 38 with its left-hand end, and its movement toward the right is limited by another stop 89. A clearing gear 910 is arranged below each storage gear ?5 in meshing relation on a pin 96. A strip 92 holds the clearing gears 90 on the pins 9i and is, in turn, secured by nuts 92a on the outer ends of some of the pins 9!]. By these means, the clearing gears 90 mesh with the corresponding storage gears it above, and with the rack ill below. Each clearing gear has a zero gap 93, Fig. 4, which, like the gaps in the storage gears i5, extends for half the width of a tooth.

The clearing rack 81 is operatively connected to the cam plate 55 on the sleeve 51 by the fol lowing mechanism: A fork 94, with a slot 95, projects downwardly from the clearing rack 81. A flange 96 which is mounted to slide on the lower slide bar 84 supporting the carriage, engages in the slot 95 and is secured to the righthand end of a rod 91 whose other end is pivotally connected to a sector lever I00 fulcrumed about a headed screw IOI in the rear wall of the machine. A spring 98 attached to the rod 91 at 99 pulls the rod to the left and holds the lower end of the sector I02 on the sector lever I00 against the notched upper end of the rear arm I03 of a double-armed lever I04. This lever is secured to one end of a sleeve I01a mounted to turn on a bar I04a secured in the left-hand side wall of the machine. The front arm of the double-armed lever I 04 bears against a headed screw I06 with its end I05, against which it is held by gravity since the rear arm I03 is heavier than the front arm. Also fast on the sleeve I01a is a roller arm I01, with a roller I08 at its upper end, held against the cam plate 55 on the tens transfer shaft 5I by the weight of the arm I03.

When the storage device 1| has been moved into its active position, Fig. 3, by depression of the key S, its gears 15 mesh with the spur gears 16 on the totalizer shafts 14 and with the clearing gears on the plate 69 and are clear of the prongs 11. At the same time, the coupling lever GI, Fig. 13, has shifted the sleeve 51 to the right in the direction of the arrow a, so that the cam plate 55 is moved out of coupling relation to the pin wheel 53, and is presented to the roller I08 on the arm I01. When the tens transfer shaft 5| rotates anti-clockwise, as indicated by the arrow in Fig. 4. the elevated portion of the cam plate 55, through roller I08 and arm I01, swings the lever I04 clockwise to cause its arm I03 to rock the sector I02 of the lever I00, and shift the rod 91 and the rack 81 in the direction of arrow a.

If there is no value in the storage device 1|, that is, if its gears 15 are at zero, their zero gaps 80 are in line with the zero gaps 93 of the clearing gears 90, as shown in Fig. 3, so that the rotation of the clearing gears in anti-clockwise direction, Fig. 4, does not influence the storage gears 15. On the other hand, if a value has been transferred to the storage device 1|, solid teeth of the storage gears 15 are in line with the zero gaps 93 of the clearing gears, and so the clearing gears rotate the storage gears until the zero gaps 80 in the accumulator wheels 15 are again in line with the clearing gears 90. At the same time, the zero stops 18 of the storage gears are arrested by the checks 19, and overthrowing is prevented. Since the storage gears 15 mesh with the spur gears 16 at the upper ends of the totalizer shafts 14, Fig. 3, the shafts are rotated clockwise, as indicated by the arrow 11, and the value which has been stored in the storage device H, is transferred back to, and accumulated with the value already present in the totalizer. At this moment, the highest point of the cam plate 55 is in contact with the roller I08, and, as the tens transfer shaft 5I continues its rotation and the reduced portion of the cam plate 55 is presented to the roller I08, the rack 81 is allowed to return into its initial position against the check 88 at the left under the action of the spring 90. The clearing rack 81, during such return, reversely rotates the clearing gears 90 until their zero gaps 93 register with the zero gaps 80 of the storage gears without turning said storage gears.

5. Efiecting an operation of the tens transfer mechanism upon transferring an amount from the storage device back into the accumulator The functions required for the accumulation of values necessitates a complete revolution of the tens transfer shaft 5I, and the following mechanism is provided for performing this: Referring to Fig. 10, an arm I09 is keyed on the shaft 29 and a rod H is pivotally connected to the free end of the arm. At its rear end, the rod is equipped with a lug III which is arrested by a recessed intermediate frame part II2. A headed screw H3 at the rear end of the rod IIO guides the rod in a slot I I4 in the frame part H2 and a catch H5 is mounted to swing about the headed screw. A spring II1 whose upper end is secured to the frame part II2, holds a lug IIG extending at right angles from the catch II5, against a curved face II8 of the frame part II2.

A step H9 is arranged on the rear end of the catch II5 which step cooperates with a lug I of a bellcrank I2I. In the inactive position of the mechanism, the lug I20 engages in a recess I22 in the catch H5. The bell cranks I 2| and I23 are mounted to swing about a headed screw I25 in a lever I26 having a curved slot I38. The slotted lever I26 is mounted to. swing about a bar I21-see also Fig. 10a-arranged in the machine frame. A headed screw I28 in the slotted lever I26 engages in a curved slot I29 of the bellcrank I2I. The bellcrank I2I is thus enabled to perform a limited swinging movement independently of the slotted lever I26. A spring I30 secured to a. pin [23a of the bellcrank I23 at one end, and to a pin I26d of the slotted lever I26 at the other end, tends to tum the bell'crank I23 anti-clockwise, the initial position of the bellcrank I23 being determined by a lug I32 engaging the bellcrank I2I. The bellcrank I2I is normally held 5 by a spring I29b with the right-hand end I3I of the slot I29 against the headed screw I28 projecting from the lever I26. The spring I29 is anchored in the machine frame and attached to the pin I29aof the bellcrank I2I, the spring with the levers I2I and I26 making up a single unit so that the lever I26 is turned clockwise by the spring I29b about the bar I21, its initial position being defined by its edge I26e engaging an abutment I33 in the machine frame, Fig. 10.

The arm I34 of the bellcrank I23 is also able to cooperate with the abutment I33, the arm I34 lying above the abutment I33 in the initial position of the mechanism.

Two tens transfer cams I35 on the tens transo fer shaft 5| are connected by a stay I36 and this stay is in the path of an extension I31 of the bellcrank I2I.

The lever I26, Fig. 10a, has shoulders I26a and I26b at the side of its curved slot I38, and these 5 cooperate with a pin I39, Fig. 10, at the free end of an arm I4I on a clutch control shaft I40 mounted to rotate in the frame of the machine. At its right-hand end, the clutch control shaft I40 supports a clutch arm I42 which controls the 30 actuating mechanism clutch I43 and the carriage shift clutch I44 on the main driving shaft I45. The actuating mechanism clutch I43 effects a complete revolution of the tens transfer shaft 5I through the gearing I46 etc. illustrated in Fig. 35 13. In its normal position, the pin I39 at the end of the arm I4I occupies the position illustrated in Fig. 11 with respect to the slotted lever I26 in which the lower edge of the pin I39 is in line with the shoulder I26a, and its left edge 49 is below, and in front of, the right-hand edge of the shoulder I26b. The are described by the pin I39 is so determined that, when the pawl I44a of the carriage shift clutch I44 is released for one step in the feed of the carriage, that is, upon oscillation of the clutch control arm I42 in clockwise direction, the pin I39 engages the shoulder I20a of the slotted lever I26 and locks the storage key I6 since the pin does not permit swinging of the slotted lever I26 anti-clockwise. The pin I39, by contacting the shoulder I26b, also looks the storage key I6 when the pawl I43a. of the actuating mechanism clutch I43 has been released for a calculating operation by turning the shaft I40, and the arm I4I, anti-clockwise, since the pin I38 then lies in contact with the shoulder I26b.

The operation of this mechanism is as follows: When the storage key I6 is depressed, the shaft 29 and its arm I09 are turned clockwise. The arm I09 shifts the rod H0 in the direction of the arrow 0. The catch II5 fulcrumed to the rod H0 is turned slightly about the screw II3 anticlockwise against the spring II1 by its lug II6 sliding along the curved edge II8 of the stationary frame plate II2. As the slot in the catch I I5 normally engages the lug I20 of the bellcrank I2I, the bellcrank is also pulled in the direction of the arrow c. The three levers I2I, I23, and I26 are swung together anti-clockwise about the bar I21 against the tension of spring I29b. The arm I34 of the beilcrank I23 strikes the abutment I33 and is swung slightly about the screw I25 in clockwise direction, tensioning the spring I30 engaging its lug I32. Immediately after,

when the bellcrank I23 has cleared the abutment I33, it is turned anti-clockwise by the spring I30, as shown in Fig. 12, engaging in front of the abutment I33. by which means the storage key I6, if released prematurely, is held in its depressed position and the entire mechanism is locked in its active condition.

During the swinging of the lever I26, the pin I39 on the arm I4I n the clutch control shaft I40 slides along the shoulder I26a and up in the slot I38 of the lever I26 to turn the shaft I40 anti-clockwise. The clutching lever I42 releases the pawl I43a of the actuating mechanism clutch and the clutch is thrown in.

Through mechanism which is known in the art and has not been illustrated, the circuit of the motor 1a is closed when the storage key I6 is dethe clutch I43 must be disconnected after "the first reuolution. A short time before the tens transfer shaft has completed its first revolution, the stay I36 of the tens transfer cams I35 strikes the edge I31 of the lever I2I and swings this clockwise for about the distance permitted by the slot I29. The lug I on the horizontal arm of the lever I2I now leaves the recess I22 in the catch H5 and the upward extension I31 of the lever I2I engages the lug I32 of the bellcrank I23 and swings this clockwise against the spring I to disengage its arm I34 from the abutment I33. When the stay I36 is on the highest point of the arm I31 of the lever I2I, spring I29b swings the three levers I2I, I23, and I26 counter-clockwise until the lug I20 of the lever I2I engages the step II9 of the catch II5, Fig. 12a, but the catch and the arm I09 and rod I I0 remain in active position under the action of locking means I68, I10, and HI, Fig. 7, as will be described in connection with the clutch means for the clearing members of the result totalizers. By the swinging motion of the lever I26 the pin I39 on the arm I4I of the clutch control shaft I40 is forced out of the cam slot I38 of the lever I26, turning the clutch lever I42 clockwise so that it returns into the path of the pawl I43a of the actuating mechanism clutch I43 to efiect disengagement of the actuating clutch after one revolution of the tens transfer shaft 5I. When the storage key I6 is released from the locking action of the means I68, I10,

and "I, the spring 21 of the key lever 24 returns the parts I09, H0, and I I5 into their initial positions, Fig. 11, as determined by the lug II I of the rod IIO engaging the intermediate wall H2, and spring I29b returns the levers I21, I23, and I26 into their initial positions.

Even though the operator maintains the storage device key I6 depressed after the completion of a machine cycle, no operation of the calculating wheels 3 or of the storage device wheels 15 can occur, because the shoulder II9 of the catch II5 will still rest on lug I20 of the arm I2 I, thus depriving the storage device key I6 of all control over the clutch control arm I4I on the clutch control shaft I401 6. The uncoupling mechanism for the revolution counters The revolution counters 4 must not be operated when the storage key I6 is depressed. The rod eyes I18 and I19 of the bracket I12.

I I0 has a hole I60. as best seen in Fig. 10, and in this engages a pin I63 at the free end of an arm I64 whose hub I66 is keyed on a shaft I66. The pin I63 is arranged to slide along an incline I5I forming part of one side of the hole I60. At the right-hand end of the shaft I56, another arm I61 is arranged whose pin I56 engages in a slot I69 in a push rod I62 having a pair-of lugs I60, I6I, slidable along a guide, not shown. The offset, rear end I63 of the push rod is pivoted to a bellcrank I64 i'ulcrumed on a headed screw I65, one arm of which bell crank engages between a pair of flanges I66 on a draw key I61 which operates the reversing mechanism, not shown, of the revolution counters 4.

When the storage key I6 is depressed, the rod H0 is shifted in the direction of the arrow 0 and the pin I53 rides upwardly along the incline I5I and engages in a slot I52 of the cam aperture I 60. The shaft I56 is turned anti-clockwise and the push rod I62 is moved into the position shown in Fig. 12 to shift the draw key I61 to its intermediate position and render ineffective the reversing mechanism for the revolution counters 4.

The revolution counters 4 and the operation of the draw key I61 are fully disclosed in Patent No. 2,143,741.

7. The clutch means for the cancelling members of the result totalizers When a value is to be stored the corresponding numeral wheels 3 must be cancelled. A pin I66 on the key lever 24 of the storage key I6, Fig. 7, is arranged to slide along the convex edge I69 of a lever I10 and to engage in a notch I1I at he lower end of the. edge. The lever is mounted to swing about a headed screw I13 in a bracket I12 suitably attached to the right-hand side plate of the machine and a spring I14 pulls the lever counter-clockwise against the pin I68. A lug I16 on a U-shaped frame I11 projects into a slot I15 in the lever I10. The frame is mounted to swing about, and to slide on, a bar I secured in two The base plate I11 of the U-frame is equipped with a laterally projecting arm I8I. The lower edge of the arm engages a pin I82 forming part of a bail I84 mountedto swing about a bar I83. A hook I85, I86 on the bail engages below a. connecting rod I81. A spring link I88 is connected to the lower end I86 of the hook and to a pin I89 on the connecting rod, to yieldingly retain the hooked end against an abutment I90 on the rod. Another spring I9I pushes the connecting rod I 81 opposite to the direction of the arrow 0. A slot I92 in the front end of the connecting rod engages a pin I94a at the lower end of the key lever I93 of the totalizer clearing key I2. In its upper final position, the key lever I 93 bears against an abutment, not shown, with a projection I93a.

The rear end of the rod I81 is pivotally connected to a lever I94 mounted to swing about a bar I95. The lever has a projection I98 and a slot I96 below the projection, and a lateral extension I91 of the clutch lever I42 normally lies in .alinement with the open end of the slot I96.

A lug I99 of the lever I94 controls the clutch lever 200 of a clearing clutch 203. The lever 200 is fulcrumed on a headed screw MI and its arm 202 cooperates with a pawl 204 on the clutch. A clearing rod 206 is pivoted eccentrically to the clutch 203 at 205 which, through rack L, pinion L1, and spur gear L3, Fig. 2, eifects the clearing of the result totalizer as fully disclosed in the above mentioned Patent No. 2,173,635 under the heading Clearing mechanism for the accumulator".

The pivot pin 205 which connects the rod 208 to the clutch 203, cooperates with the end 201 of a shift lever 209 pivoted on a headed screw 208 in the bracket I12. The shift lever 209 which is guided in a notch 2 formed in the ear I19 of the base plate I12, is forked at 2I2 to embrace the rear shank 2I3 of the U' frame I11. The upper edge of the shank 2I3 has formed thereon a curved cam 2 to cooperate with a cam 2I5 on the shaft 2I6, Figs. 8 and 9.

The lever I10 connected to the slidable and rockable U-fraine I11 by the lug-and-slot connection I15, I16, has a tooth 2" at its upper end for cooperation with a catch 2 I8a at the free end of a spring 2I9 to which the catch is riveted at 2I8. A lug 220 on the spring is arranged in the path of the key lever 24 of the storage key I6.

It will be recalled, as described under Title 5, that depression of the storage device control key I efiects the release for operation of the accumulating and tens-transfer clutch I43, through the medium of the catch H5, cam-slotted lever I26, clutch control arm MI on clutch control shaft I40, and clutch control lever I42.

By the same depression of the storage device control key I6 positions its pin I68 in register with the notch "I in the shift lever I10, whereupon the spring I'M rocks the shift lever I10 rearwardly to fit the notch IlI over the pin I69, until' the inner wall Ilia of the notch contacts the pin I68 whereby the shift lever is arrested.

The shift lever I 10 on such counterclockwise rocking, shifts the U-frame I'II axially towards the left (Fig. '7) from the position shown in Fig. 8 to that shown in Fig. 9, through its slot and lug connection I15, I16, in order to locate the cam 2I4 on the left-hand arm 2I3 of the U-shaped frame in the path of rotation of the cam 215 projecting radially from the shaft 2 I6.

Furthermore, the U-shaped frame, as it shifts axially, rocks the angular lever 209 counterclockwise through the engagement of the fork 2 I2 of the angular lever with the left-hand arm 2 I3 of the U-shaped frame, to project the left-hand end 201 of the angular lever into the path of rotation of the pin 205 on the clearing clutch 203.

Rotation of the clutch I43 drives its shaft I45 and gear I46, which gear meshes with the gear I41 on the shaft 2I6 (Figs. 8 and 9) to rotate it clockwise (Fig. 13) and a bevel gear I48 on the gear I41 meshes with a companion bevel gear I49 on shaft to rotate the tens-transfer shaft 5I.

Furthermore, as heretofore explained, a cross stay I36 (Figs. 10 and 11) supported by two of the tens-transfer cams I35, operates shortly before the completion of a single revolution of the tenstransfer shaft 5|, to disconnect the storage device key controlled catch H5 from the bell crank I2I and displace the locking bell crank I23, whereupon the spring I29b rocks the cam-slotted lever I26 back to its normal position, which camslotted lever, as it returns, rocks the clutch shaft arm HI and clutch shaft I40 to restore the clutch control lever I42 to its neutral or intermediate position, wherein it restrains both clutches I43 and I44 against operation.

While the clutch control lever I42 is in such position that it has released the clutch I43 for operation, its tail or extension I91 (Fig. '1) is positioned in the path of the projection I98 on the resetting clutch control lever I94 to lock the totalizer clearing key I2 against operation, but when the clutch control lever I42 is in its neutral position, its tail I91 lies opposite the recess I88 of the resetting clutch control lever. The shaft 2 I 6 and its spring tensioning cam 2I5 rotate in timed relation and in the same train with the tenstransfer shaft 6| with its tens-transfer cams I35 and cross stay I36.

Therefore, it is a simple matter to so locate the cross stay I36 on the tens-transfer cams I35, and spring tensioning cam 2I5 on the shaft 2I6'in such relation that, just prior to the return of the clutch control lever I43 to neutral position (initiated by contact of the cross stay I36 with the arm I31 of the bell crank I2I), the spring tensioning cam 2": shall wipe along the cam surface 2I4 on the left-hand arm 2I3 of the U-shaped frame I11 to rock the U-shaped frame counterclockwise and hold it in such operated position for a length of time sumcient to enable the spring I29b (Figs. 10-12) to restore the clutch control lever I 42 to neutral position, bearing in mind that such restoration occurs prior to the completion of the rotation of the clutch driven shafts I45, 2I6 and 5I.

Resuming the description of the totalizer w eel clearing operation, the U-shaped frame I11 as it is rocked counter-clockwise by the cam 2G5, presses its arm I9I (Fig. 7) upon the pin I82 projecting from the bail I84, and rocks the bail counter-clockwise, with its depending arm I85.

The depending arm I65 attempts to draw the connecting bar I81 forwardly in the direction of the arrow 0, through spring link I88, but is prevented from so doing by contact of the projection I98 of the resetting or clearing clutch control lever I94 against the tail or extension I91 of the calculating clutch control lever I42.

Consequently, the depending arm I85, in rocking counter-clockwise, tensions the spring link I88 connecting it with the connecting bar I81 and also the return spring I9I.

The tensioning cam 2I5 because of the length of its co-acting cam face 2I4 on the U-shaped frame I'II, maintains the U-shaped frame and the bail I94 in their operated positions to retain the spring I88 tensioned until the spring I291), through the cam-slotted lever I26, restores the calculating clutch control lever I42 to its neutral or intermediate position, so that the extension or tail I91 rocks clockwise out of the path of the projection I98 of the clearing clutch control lever I94 and into registry with the recess I96 in such lever.

Since the restoration to neutral of the accumulator clutch control lever I42 occurs just prior to the completion of the rotation of the clutch I43 and its shafts I45, 2I6, and 5|, the trailing, tensioning cam 2I5 escapes from the cam face 2I4 of the U-shaped frame I11, whereupon the tension stored in the spring I88 (which spring is superior to the return spring I9I) snaps the connecting bar I81 forwardly and rocks the theretoconnected clearing clutch control lever I94 countor-clockwise, fitting the recess I96 over the tail I91 to thereby lock the accumulator clutch control lever I42 in its neutral position during the operation of the clearing clutch 203.

The slot I92 in the connecting bar I81 permits this spring actuation of the connecting bar and clearing clutch control lever I94 relatively to the manually operated clearing key lever I 93.

The connecting bar I81 advances under the stored energy in the superior spring I88, until the shoulder I on the connecting bar again contacts the end I86 of the depending arm I85. at which time farther advance of the connecting bar ceases.

The resetting clutch control lever I84 on its counter-clockwise rocking, due to the advance of the connecting bar I81 under the pull of spring I88, causes its arm I99 extending forwardly beneath the clutch-disabling dog 200, 202 to rock the clutch-disabling dog to its ineffective position, thereby freeing the resetting or totalizer clearing clutch 203 for operation.

Thereupon the motor-driven shaft I45 turns the driven clutch member counter-clockwise.

Substantially simultaneously with the disengagement of the clutch disabling dog 200, 202,

from the resetting clutch 203, at which time the spring I88 has exhausted its stored energy, the trailing cam 2 I on shaft 2 I6, which initially tensioned the spring I88, escapes from the cam face 2| 4 of the U-shaped frame I11, whereupon the inferior spring I9I, which has been tensioned by the advance of the connecting bar I81, asserts itself and returns the connecting bar I81, and clearing clutch control lever I94, to their normal positions. The clearing clutch control lever, therefore, releases the clutch disabling dog 200, 202 which returns to position to disconnect the clutch at the completion of a single rotation.

The connecting bar IN, on such return, draws with it the depending arm I85 of the bail I84 through the spring link connection I88, and the bail rocks the arm I8I and the U-shaped frame back to their initial raised positions.

The clearing clutch 203 rotates anti-clockwise and, through L, Li, and L: (the pinion L1 rotating in the direction of arrow at, Fig. 2) clears the corresponding orders of the totalizer. Before the clearing clutch 203 has completed the first half of its revolution, its pin 205, (Fig. '1) acts against the end 201 of the lever 209 from below to turn the lever clockwise about the screw 208. This movement is transmitted to the latch lever I through fork 2 I2 and the sliding and rocking bail I11, to rock the latch lever clockwise. Its upper end 2I1, Figs. 8 and 9, acts against an incline on the catch 2I8a and forces the catch up. When the end of the latch lever I10 is in the position shown in dot-and-dash lines in Fig. 9, the catch 2 I 8a engages over the end 2 I 1 and the latch lever I10 is held against return in counter-clockwise direction.

When the corresponding orders of the result totalizer 3 have been cleared all functions required for storage have been performed, and the storage key I6 can now be released. The latch lever I10 when turning clockwise as described, releases the pin I68 of the storage key I6 which was in the notch I1I, allowing springs 21 and 34 (Fig. 13) to return all parts connected to the key lever, to their initial positions. However, before the key lever 24 reaches its upper final, or initial position, it bears against the lug 220 and raises the catch 2| 8a so that the latch lever I 10 is released and the spring I14 pulls it against the pin I68 on the key lever 24, Fig. 8.

If the operator holds the storage key I6 depressed after the accumulation on the wheels of totalizer 3, has been completed, no calculations can be performed for the reasons stated in the last paragraph of section (5) entitled The locking and coupling means for the storage key. On the other hand. the catch 2l8a allows the key lever 24 of the storage key I6, and the parts connected to it, to return into their initial positions immediately when the key I6 is released.

7 8. Mechanism for clearing the storage device The bar 22I of the clearing key I1, Fig. '7, for the storage device is curved and has a slot 222 at its lower end by which it is guided on a headed screw 223. A spring 224 pulls the bar up in the direction of the arrow d in Fig. 17. The bar 22I has a laterally extending lug 225 with an angular tooth 226. The lower edge of the toothbears against the pin I68 on the key lever 24 and its concave front edge 221 cooperates with the convex edge I69 01 the latch lever I10.

When the totalizer clearing key I1 is depressed, its tooth 226 rocks the key lever 24 of the storage key counter-clockwise through the pin I68. The length of the slot 222 is so determined that the final depressed position of the key I1 is also the active position of the storage key I6, as shown in Fig. 1'7. The mechanisms connected to the storage key I6 are now operated as described, and the storage device is cleared by transferring the stored values to the result totalizer 3. The totalizer 3 cannot be cleared by the means described in section (7) entitled The coupling means for the clearing members of the result totalizer as the latch lever I10, notwithstanding the juxtaposition of its notch HI and the pin I68, cannot turn under the pull of the spring I14 because it is arrested by the concave edge 221 of the tooth 226 on the totalizer clearing key stem 22I, which lies in the path of the convex edge I69 of the latch lever I10.

9. The operation of the machine Assume that the products 11x11, 12x16, and 13x15 are to be added, and that the product 25x5 is to be subtracted from the total of the three products. The result totalizers 3 and the storage device H are in their zero positions.

The calculation keys 6 are depressed in the seventh and eighth rows from the left, Fig. 1, for introducing the multiplier 11, and the multiplicand is introduced in a similar manner in the first and second rows at the right of the calculation keys 6, the multiplication key I8 is depressed, and the first product 11 1l=121 is indicated by the corresponding result totalizer 3, the revolution counter 4 indicating 11. The first product, 121, must now be transferred to the storage device H by depression of the storage key I6. Shaft 29 is turned clockwise and the parts 32, etc., are moved from their initial positions, Fig. 14, into the active positions, Fig. 15, as described. The end 50 of the lower arm 49 of the bellcrank 45, 49 is presented to the sector 52 on the tens transfer shaft 5I, the pin disk 53 for the totalizer coupling D is disconnected from the transfer shaft 5| by the lever 6| shifting the sleeve 51 in the direction a, Fig. 13, and moving the cam plate 55 into active relation to the roller I08 at the upper end of the roller arm I01, Fig. 4. At the same time, the storage device H is moved into its active position, as shown in Fig. 15, so that its gears 15 mesh with the totalizer spur gears 16, Fig. 3, and, when the numeral wheels of the totalizer 3 are returned to zero, the first product 121 is transferred to the storage device H by the totalizer 3.

Upon depression of the storage key I6, the parts I09, etc., are moved from the position in Fig. 11 into that in Fig. 12, and the same occurs with the parts I53, etc., connected to the shaft rendered inactive.

Lastly, the pin I68 on the key lever 24 of the storage key I6, through lever I10, shifts the U- frame I" from the inactive, or initial, position, Fig. 8, into the active position Fig. 9, in which the curved cam 2 of the U-frame is presented to the cam 2I5 on the shaft 2I6, and the end'of the lever 209 is presented to the pin 205 of the clearing clutch 203.

When the said preliminary adjustments following the depression of the storage key I6 have been completed, as described, the circuit of the motor Ia is closed by automatic means, not shown, and the main driving shaft I45 is rotated counter-clockwise. The actuating mechanism clutch I43 which has been released for operation by its lever I42, rotates with the main driving shaft and the tens transfer shaft is rotated through the gearing which has been described. The first operation performed by the rotating tens transfe shaft is the clearing of the storage device II bythe elevated portion of the cam plate 55 depressing the roller I08 on the arm I01 and, through the means described, shifting the rack 81, Fig. 4, to the right so that the clearing gears 90 are rotated counter-clockwise. However, as there is as yet no value in the storage gears I5, their zero gaps 60 are presented to the clearing gears 90 and they do not rotate the storage gears 75.

When the clearing operation in the storage device has been completed, that is, when the roller I08 is engaged by the low point of the cam plate 55, which occurs after about two thirds of a revolution of the tens transfer shaft 51, as described, the sector 52 rocks the lower arm 49 of the bellcrank, the upper arm of which moves the storage device 1i into inactive position by means of the crank.82. In the present instance, this disconnection of the storage device '55 and the totalizer spur gears I6 has no function. When the sector 52 releases the arm 49, the spring 05 returns the bellcrank 45, 49 into the position shown in Fig. 15 in which the storage device ii is returned into active position and its gears 55 re-engaged with the totalizer spur gears 16. At this moment, the cam M5 on the shaft 216 enages the cam 2114 of the U-frame ill and tension is put on the spring i88, as described.

Shortly before the tens transfer shaft 5i has completed its revolution, the stay I36 of the tens transfer cams I engages the arm I3I of the lever I2I and turns the lever clockwise, so that, as described, the arm I34 of the lever I23 again leaves the abutment I33, and the spring I29b swings the levers I2I, I23, and I26 until the lug I20 engages the step H9 in the catch II5, the parts occupying the intermediate positions illustrated in Fig. 12a. At the same time and under the action of, the slot I38 in the lever I26, the clutch lever I42 returns into its initial position in which it throws out the actuating mechanism clutch I43 after one revolution, and releases the lever I94, to the action of the spring I88 to cause the lever I94 to trip the clearing clutch detent 200 and enable the clearing clutch 203 to engage with the main driving shaft I45.

Since the storage key I6 is still locked in its depressed position and holds the storage device 1| in active position, the storage gears I5 still are in mesh with the totalizer spur gears I6. The rod 206 which is connected clutch 203 contains the first product "121 to the clearing at 205, clears the totalizer 3 which through members Li, L, and Lo in the manner described. the storage gears 15 being rotated to register the amount entered into the totalizer, during the first half revolution of the clearing clutch 203. The totalizer shafts I4 are rotated clockwise until their tens transfer cams N, Fig. 2. engage the teeth Zn of the tens transfer slides Z. Thus the storage device II receives the first product "121 while the corresponding result totalizer 3 is returned to zero. After value "121 has been transferred into the storage device II from the totalizer 3, the storage key I6 is unlocked by the pin 205 of the clearing clutch 203 engaging the end of the lever 209, and all parts operated by the storage key I6 return into their initial positions. The revolution counter 4, on which is registered factor 11" is cleared by depressing the key I3.

The second product, 12x16, is now entered by means of the keys 6, as described, and the multiplication key I8 is depressed whereupon the value 192 is indicated by the totalizer 3. and the value "16 by the revolution counter. To obtain the total 1214-192, the storage key it is depressed again, but the product 192" is not transferred to the product "121 already in the storage device 7!. Instead, the product 121 in the storage device ii is added to the product "192 in the totalizer 3 by clearing the storage device ii to transfer the amount registered thereon back onto the totalizer 8, and the total 313 thus obtained in thetotalizer 3 is then transferred to the storage device ii, as follows.

en the storage key It is depressed, the storage device it is cleared in the manner described above, its clearing gears rotating counter-clockwise. This, however, applies only to the three gears I5 at the right, as the value 121 was entered only in these by the first storage and. so a solid tooth of each of the three gears is in line with the zero gaps 93 of the allotted clearing gears 90. These gears 15 are now rotated clockwise until their zero stops 78 engage the checks I9. By the rotation of the three gears 15 at the right, the three orders of the totalizer 3 at the right are rotated counterclockwise through spur gears I6, in conformity with the stored value 121. However, since the totalizer 3 already indicates the value 192, the stored value "121. is added to 192, but only "213 is indicated by the totaiizers, a the tens transfer has only been conditioned for the operation by the tens transfer cam N of the spur gear Na, Fig. 2, which engages the tooth Za of the tens transfer slide Z and shifts the slide in the direction of the arrow b. At this moment, the tens transfer shaft 5| has been rotated so far that its sector 52 acts on the end 50 of the bellcrank arm 49 and thereby disconnects the storage device II from the gears I6. This is, necessary preliminary to the tens transfer, as the storage gears I5 which are already at zero could not rotate clockwise as required for tens transfer, because already arrested by the checks I9. The tens transfer is effected immediately after the storage device has returned to its inactive position, Fig. 2, in manner per se known, by the tens transfer cams I35 on the tens transfer shaft 5I which elevate all tens transfer slides M. As, however, only the tens transfer slide Z of the tens place was shifted in the direction I). the corresponding tens transfer slide M is turned to the right when the slide Z rises, turning the numeral wheel of the order of the totalizer one step so that the correct amount 313 is now indicated by the totalizer. After this has been effected, the sector 52 releases the arm 49, and the spring 44 returns the storage device into active position.

When the tens transfer shaft has completed its revolution, the actuating mechanism clutch I 43 is thrown out and the clearing clutch 203 is thrown in, so that the totalizer is now cleared. As the storage device is still in the active position, Fig. 3, the total of the two products 121+192=3l3, is transferred to the storage device Il. The third product 13 15=195 is now obtained and appears in the totalizer. For adding the value "313 in the storage device H to the value "195 in the totalizer, the storage key i6 is depressed again, the combined total of the first two multiplications, namely 313 is transferred from the storage device H to the totalizer 3 to be added to the result of the latest multiplication, namely, 195, after which the gross or final product "508 now registered on the totalizer is transferred onto the storage device and the totalizer is cleared, in the manner just explained. in the manner described. The value "508 is now in the storage device 1 l. The product of 25x5 must now be subtracted from the total 508. The finger lever 2 I, Fig. 1, is shifted to negative multiplication. The two factors 25x5 are now entered by means of the numeral keys in the manner described and the multiplication key [8 is depressed. The product now appears on the totalizer as the negative complement, 999 999 999 999 9875. To find the final result, 508--125=383, the clearing key I! is depressed and thereby the value "508 in the storage device H is transferred additively to the value in the totalizer, and the machine now performs the following calculation:

too 000 ooo'ooo'osszi clearing clutch 203 is thrown in and the value "383 is cleared from the totalizer through the mechanism L, Li, In. The storage device and the totalizer are now at zero again.

We claim:

1. In a power-driven calculating machine, having a totalizer; and a storage device releasably engageable with the totalizer; the combination with an actuating shaft; a drive clutch releasably connectible with the actuating shaft; a clutch control element for the drive clutch; clearing mechanism for the totalizer; a releasable clutch connection between the totalizer clearing mechanism and the actuating shaft; clearing mechanism for the storage device; a storage control key to engage the storage device with the totalizer; means operable by'the storage control key to shift the clutch control element and free the drive clutch for operation; means tripped .by the drive shaft to return the actuating clutch control element to position to disconnect the drive clutch; means settable by the storage control key and operable by the actuating shaft to effect an operation of the storage device clearing mechanism; and a clutch control means for the totalize clearing clutch; of tension means to operate the clutch control means for the totalizer clearing clutch to free said clutch for operation; means operable by the actuating shaft to store energy in the tension means; said tension means including a transmitting member normally out of the path of the actuating shaft-operated means; means operable by the storage control key to adjust said transmitting member into position to be actuated by the actuating shaft-operatedmeans; and means controlled by the drive clutch control element to restrain the tension means against effective operation as long as the actuating clutch control element remains out of clutch disabling Position.

2. In a power-driven calculating machine, the combination with a totalizer; a storage device; means to connect the storage device with the totalizer; means to clear the storage device to transfer an amount from the storage device onto the totalizer; clearing mechanism for the totalizer to transfer an amount from the totalizer to the storage device; and a storage device control key; of means under control of said storage device control key to automatically effect the operation of said clearing means for the storage device and the subsequent operation of said clearing means for the totalizer in timed relation, including a member shiftable under control of the storage device control key to enable the automatic operation of the totalizer clearing mechanism; a second key operatively connected with the storage device control key to depress the latter; and means controlled by said second key to restrain the shiftable member against operation; whereby the automatic clearing of the totalizer is eliminated.

3. In a calculating machine provided with a totalizer and a storage device, the combination with an actuating shaft; a drive clutch releasably connectedwith the actuating shaft; totalizer clearing means; a clutch to releasably connect the actuating shaft and totalizer clearing means; and a clearing means for the storage device; a storage device control key to engage the storage device and totalizer to enable the transfer of amounts from the totalizer to the storage device and vice versa; and means successively controlled by the storage device control key and by the actuating shaft to effect connection and subse-- quent disconnection of the drive clutch: of means successively controlled by the storage device control key, and by the actuating shaft prior to the disconnection of the drive clutch, and after the initial engagement of the storage device and the totalizer, to disengage and reengage the storage device and totalizer to enable a carry to be effected in the totalizer during the interval between such disengagement and re-engagement; and means settable by the storage device control key and tensioned by the actuating shaft for automatic operation subsequent to the re-engagement of the storage device and totalizer, and at a time substantially coincident with the disconnection of the drive clutch, to trip the totalizer clearing clutch to effect an immediately succeeding clearing operation of the totalizer, whereby to transfer to the storage device the accumulation from the totalizer while the storage device remains engaged with the totalizer.

4. In a calculating machine, the combination with a totalizer; an actuating shaft; a one-revolution drive clutch releasably connected with the actuating shaft; a storage device; a storage device control key to connect the storage device and totalizer; and means driven by the actuating 

